Matched Pair Sylvania 6K6 6K6GT Vacuum Tubes Silver Tops You Got To Pay This is a 1981 pressing

This is a 1981 pressing

The dust jacket shows some wear

(New 5933s typically test from the mid teens to mid 30s with transconductance from 2200 micromhos)

These nine US-made 6C5s were tested on our Paul Hart-calibrated TV7/U for shorts

with a very low noise floor and excellent soundstaging

Matched Pair Sylvania 6K6 6K6GT Vacuum Tubes Silver Tops You Got To Pay This is a 1981 pressingThis new old stock TESTING matched pair of Sylvania silver top 6K6GT tubes was tested on our Maxi Matcher tube tester with 325 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Tube One measured 1690 micromhos and drew 19. 6 milliamps' plate current. Tube Two measured 1740 19. 8 where new nominal is within one standard deviation of 1900. These 6K6s are among the best looking, most solidly